Package org.jungrapht.visualization.control

Class LensTranslatingGraphMousePlugin

java.lang.Object

org.jungrapht.visualization.control.AbstractGraphMousePlugin

org.jungrapht.visualization.control.LensTranslatingGraphMousePlugin

All Implemented Interfaces:

MouseListener, MouseMotionListener, EventListener, GraphMousePlugin

public class LensTranslatingGraphMousePlugin
extends AbstractGraphMousePlugin
implements MouseListener, MouseMotionListener

Extends TranslatingGraphMousePlugin and adds the capability to drag and resize the viewing lens in the graph view. Mouse1 in the center moves the lens, mouse1 on the edge resizes the lens. The default mouse button and modifiers can be overridden in the constructor.

Author:

Tom Nelson

Nested Class Summary

Nested classes/interfaces inherited from class org.jungrapht.visualization.control.AbstractGraphMousePlugin

AbstractGraphMousePlugin.Selecting

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	dragOnEdge
protected boolean	dragOnLens
protected double	edgeOffset
protected int	lensTranslatingMask

Fields inherited from class org.jungrapht.visualization.control.AbstractGraphMousePlugin

cursor, down, modifiers

Constructor Summary

Constructors

Constructor	Description
LensTranslatingGraphMousePlugin()	create an instance with default modifiers
LensTranslatingGraphMousePlugin(int translatingMask)	create an instance with passed modifer value

Method Summary

Modifier and Type	Method	Description
void	mouseClicked(MouseEvent e)
void	mouseDragged(MouseEvent e)	check the modifiers.
void	mouseEntered(MouseEvent e)
void	mouseExited(MouseEvent e)
void	mouseMoved(MouseEvent e)
void	mousePressed(MouseEvent e)	Check the event modifiers.
void	mouseReleased(MouseEvent e)	unset the 'down' point and change the cursoe back to the system default cursor

Methods inherited from class org.jungrapht.visualization.control.AbstractGraphMousePlugin

checkModifiers, getCursor, getModifiersEx, setCursor, setModifiers

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

dragOnLens

protected boolean dragOnLens

dragOnEdge

protected boolean dragOnEdge

edgeOffset

protected double edgeOffset

lensTranslatingMask

protected int lensTranslatingMask

Constructor Detail

LensTranslatingGraphMousePlugin

public LensTranslatingGraphMousePlugin()

create an instance with default modifiers

LensTranslatingGraphMousePlugin

public LensTranslatingGraphMousePlugin(int translatingMask)

create an instance with passed modifer value

Parameters:

translatingMask - the mouse event modifier to activate this function

Method Detail

mousePressed

public void mousePressed(MouseEvent e)

Check the event modifiers. Set the 'down' point for later use. If this event satisfies the modifiers, change the cursor to the system 'move cursor'

Specified by:

mousePressed in interface MouseListener

Parameters:

e - the event

mouseReleased

public void mouseReleased(MouseEvent e)

unset the 'down' point and change the cursoe back to the system default cursor

Specified by:

mouseReleased in interface MouseListener

mouseDragged

public void mouseDragged(MouseEvent e)

check the modifiers. If accepted, move or resize the lens according to the dragging of the mouse pointer

Specified by:

mouseDragged in interface MouseMotionListener

Parameters:

e - the event

mouseClicked

public void mouseClicked(MouseEvent e)

Specified by:

mouseClicked in interface MouseListener

mouseEntered

public void mouseEntered(MouseEvent e)

Specified by:

mouseEntered in interface MouseListener

mouseExited

public void mouseExited(MouseEvent e)

Specified by:

mouseExited in interface MouseListener

mouseMoved

public void mouseMoved(MouseEvent e)

Specified by:

mouseMoved in interface MouseMotionListener